Finding the Third Proportional to 2,640.75 and 5,551.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640.75 : 5,551.13 = 5,551.13 : x
2. Step 2: Convert to fraction form
   2,640.75/5,551.13 = 5,551.13/x
3. Step 3: Cross multiply
   2,640.75x = 5,551.13 × 5,551.13
4. Step 4: Simplify right side
   2,640.75x = 30,814,988.77
5. Step 5: Solve for x
   x = 30,814,988.77/2,640.75
6. Step 6: Final answer
   x = 11,669.03